v0.2.2

Bug fixes!

What's Changed

• Small fix in development.md by @ginazhouhuiwu in #224
• Default mime type to application/octet-stream for unrecognized file types by @ginazhouhuiwu in #227
• Fix context forwarding for 3D GUI containers by @brentyi in #229
• Fix scene pointer events for Firefox by @brentyi in #228
• Fix message buffer race conditions by @brentyi in #223

Full Changelog: v0.2.1...v0.2.2